Hi, I'm wanting to exclude data more than 2 sd's from the mean before proceeding with further analyses. I've created new logical variables (a and b) and written them to the existing dataframe. I want to be able to subset the TRUE observations based on another 2 factor variable. I'm assuming this is possible, but I don't know what I'm doing wrong, as I get results that obviously aren't correct.
Many thanks, Paul twin.wide$a<-twin.wide$RCCT<600 & twin.wide$RCCT>480 twin.wide$b<-twin.wide$LCCT<600 & twin.wide$LCCT>480 selVarsCCT <- with(twin.wide,c('a','b')) MZCCT <- subset(twin.wide,Zygosity=='MZ',selVarsCCT) DZCCT <- subset(twin.wide,Zygosity=='DZ',selVarsCCT) -- View this message in context: http://n4.nabble.com/Exclude-data-using-logical-tp1689992p1689992.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.